When given negative geometry specifications (like -0-0) gnome-terminal
places the window on the desktop adjacent to the current window.  In the
example given, the window should appear in the lower-right corner, but
actually appears in the upper-left corner of the desktop below and to the
right of the current one.  The behavior is similar if only one part of the
position is negative: -0+0 should put the window in the upper-right corner,
but it appears in the upper-left corner of the desktop to the right.  In
some particular cases, and inconsistently in those cases, such a misplaced
terminal will also be resized to a much smaller size.

This is under gnome-core-1.4.0.4-38 on a 7.2 i386 with all updates.

--jh--